A novel anti-oxygen composite coating and its corrosion resistance mechanism

Sun, Yue; Wang, Huaiyuan; Zhu, Yanji; Bai, Ziheng; Yuan, Sicheng; Chang, Yuanyuan; Meng, Lei; Wang, Huaiyuan

doi:10.1016/j.corsci.2022.110298

Cited by 17 publications

(5 citation statements)

References 36 publications

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“…In Figure 7, it can be seen that with the increase of yttrium nitrate concentration, the capacitive arc radius increases and then decreases and reaches the maximum at the addition amount of 1.5 g/L. The capacitive arc radius of the samples containing yttrium was larger than that of the sample without yttrium, and the radius of capacitive arc was positively correlated with the corrosion resistance of the sample, indicating that the addition of yttrium nitrate to MAO coating could improve barrier property 32 …”

Section: Resultsmentioning

confidence: 93%

“…The capacitive arc radius of the samples containing yttrium was larger than that of the sample without yttrium, and the radius of capacitive arc was positively correlated with the corrosion resistance of the sample, indicating that the addition of yttrium nitrate to MAO coating could improve barrier property. 32 Figure 8 shows the Bode plot of the impedance. From the frequency-impedance modulus curve, it can be seen that the impedance modulus continuously increases as the frequency decreases and stabilizes at .01 Hz.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

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Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

Zhang

Ran

Chen

et al. 2022

Int J Applied Ceramic Tech

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Different ceramic coatings were prepared on the surface of 2024 aviation aluminum alloy using micro-arc oxidation process in silicate based electrolyte combined with the rare earth based compound Y(NO 3 ) 3 ⋅6H 2 O. The thickness, hardness of the coating and conductivity of electrolyte were tested using relative devices, morphology and chemical composition were studied by scanning electron microscope and energy dispersive spectroscope, respectively. The phase composition of the coatings was characterized by X-ray diffraction and X-ray photoelectron spectroscopy. Furthermore, the corrosion resistance of the coating was evaluated by an electrochemical workstation. The results showed that the addition of Y(NO 3 ) 3 ⋅6H 2 O could improve the thickness and hardness of the coating. The morphological observation of the coating showed that Y(NO 3 ) 3 ⋅6H 2 O was successfully incorporated into the ceramic layer and that the coating had the smallest porosity at 1.5 g/L Y(NO 3 ) 3 . The phase composition of the coating was mainly γ-Al 2 O 3 , α-Al 2 O 3 , SiO 2 , Y 2 O 3 , and AlPO 4 . The corrosion resistance of coating in simulated seawater with the addition of Y(NO 3 ) 3 ⋅6H 2 O was significantly improved, and the values of |Z| 0.01 Hz and corrosion rate of the coating reached the maximum and minimum at 1.5 g/L Y(NO 3 ) 3 , which were 5.63 × 10 5 Ω cm 2 and 7.444 × 10 −4 mm/a, respectively.

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Section: Resultsmentioning

confidence: 93%

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

Zhang

Ran

Chen

et al. 2022

Int J Applied Ceramic Tech

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“…Based on their results, the performance of the corrosion protection of this coating after UV radiation was measured using EIS and showed that UV radiation severely affected the corrosion resistance of pure epoxy resin coating more as compared to coating with MMT as an additive. MMT was also used in other approaches by Sun et al for corrosion protection to obtain environmentally friendly and excellent anticorrosion coating [22], [24].…”

Section: Applications Of Mmt In Smart Coatings For Corrosion Protectionmentioning

confidence: 99%

“…It is the most prominent layered silicate [18] and its nanosize particles with layered structure may be able to provide greater corrosion protection properties [19]- [21]. It also has a characteristics of massive reaction sites, wide variety resources and low in cost [22]- [24].…”

Section: Introductionmentioning

confidence: 99%

Montmorillonite (MMT) nanoclay in smart coatings for corrosion protection of metal alloy: a brief review

Affaf,

Alias,

Alang

2024

J. Phys.: Conf. Ser.

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Montmorillonite (MMT) nanoclay is a natural raw material naturally occurring 2-dimensional lamellar silicate material. Many advantages of MMT clay are low cost, high dispersion properties, good mechanical properties, hydrophobic, good shield against corrosive media, non-toxic, easily accessible, and most importantly, it is natural. MMT was mainly used as an additive with other active smart materials to enhance the excellent properties for smart coatings. However, there is not much research done from the last 5 years regarding MMT in smart coating for corrosion protection. The discussion regarding MMT for corrosion protection is also contradict between each research. This paper provides a brief review on MMT clay in smart coatings and its advantages for corrosion protection for the last 5 years. There are also some drawbacks of MMT in smart coatings discussed at the end. Further research needs to be done as MMT has more potential that can be used in the real-world industries and to clarify the contradiction of statement existed in much research.

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“…Metal corrosion is a major challenge in society, especially in the marine environment. Harsh conditions such as high salinity, wave erosion, and marine biological corrosion make the problem even more serious. , To address this issue, various corrosion protection measures have been implemented. Detecting and preventing corrosion problems in the marine environment is crucial.…”

Section: Introductionmentioning

confidence: 99%

Synergetic Inhibition and Corrosion-Diagnosing Nanofiber Networks for Self-Healing Protective Coatings

Cao,

Wang,

Cheng

et al. 2023

ACS Appl. Mater. Interfaces

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Organic coatings lack durability in marine corrosive environments. Herein, we designed a self-healing coating with a novel nanofiber network filler for enhanced protection. Using electrospinning, we created a core−shell structure nanofiber network consisting of polyvinyl butyral (PVB) as the shell material and gallic acid (GA) and phenanthroline (Phen) as the core material. The PVB@GA-Phen nanofiber network, which includes synergistic corrosion inhibitors (GA-Phen), was embedded in an epoxy coating (PVB@GA-Phen/epoxy) and applied to carbon steel. Density functional theory (DFT) calculations and molecular dynamics (MD) simulations demonstrated that the GA-Phen combination, through hydrogen bond interaction, facilitated inhibitor adsorption on the steel surface. The GA-Phen combination diagnosed corrosion and formed a protective film on the scratched areas. The sustained release of Phen-GA combination inhibitors for up to 240 h resulted in an 88.63% healing efficiency of the PVB@GA-Phen/ epoxy (PGP/EP) coating. The long-term corrosion resistance tests confirmed the effective barrier performance of the PGP/EP coating in 3.5 wt % NaCl solution. Moreover, the incorporation of the nanofiber network in the epoxy coating provided passive barrier, corrosion-diagnosing, and anticorrosion properties for carbon steel protection. The designed coating has the potential to continuously monitor the coating/metal system and could serve as a foundation for developing new anticorrosion coatings.

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A novel anti-oxygen composite coating and its corrosion resistance mechanism

Cited by 17 publications

References 36 publications

Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

Montmorillonite (MMT) nanoclay in smart coatings for corrosion protection of metal alloy: a brief review

Synergetic Inhibition and Corrosion-Diagnosing Nanofiber Networks for Self-Healing Protective Coatings

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